this management letter was posted on all the units expressing sorrow over stan jacobson's death. but it also says stan brought people here into his life dangerous to his own well being. that is what investigators also believe. >> reporter: people at the hilltop manor city apartment are still reeling over the bizarre circumstances surrounding the disappearance of their friend 69-year-old stan jacobson missing since february 5th but who's body was discovered stabbed to death in his apartment yesterday. today police revealed the person arrested yesterday is 46- year-old regina butler and acquaintance of jacobson and a person seen with him. he talked with butler just before the arrest and confronted her about jacobson's disappearance asking her -- >> what happened to him the night you stayed with him the last night. she says i don't remember. i was on drugs, too drunk i don't know what happened. >> reporter: police are not releasing any details but brought out evidence that jacobson was trying to scam -- that butler was trying to scam jacobson over insurance money. police had been in